<template>
  <div class="login">

    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
    >
      <h3 class="title">{{ $t("login.title") }}</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          auto-complete="off"
          :placeholder="$t('login.prompt1')"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon
            slot="prefix"
            icon-class="user"
            class="el-input__icon input-icon"
          />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          :placeholder="$t('login.prompt2')"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon
            slot="prefix"
            icon-class="password"
            class="el-input__icon input-icon"
          />
        </el-input>
      </el-form-item>
      <el-form-item>
        <el-select
          v-model="language"
          style="width:100%"
          type="text"
          auto-complete="off"
          placeholder=""
          @change="langechange"
        >
          <el-option
            v-for="item in langeOptions"
            :key="item.value"
            :label="item.label"
            :value="item.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item v-if="iscode" prop="code">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon
            slot="prefix"
            icon-class="validCode"
            class="el-input__icon input-icon"
          />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" class="login-code-img" @click="getCode">
        </div>
      </el-form-item>
      <!-- <el-checkbox
        v-model="loginForm.rememberMe"
        style="margin: 0px 0px 25px 0px"
        >记住密码</el-checkbox
      >      @click.native.prevent="handleLogin"  @keyup.enter.native="handleLogin"-->
      <el-form-item style="width: 100%">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width: 100%"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">{{ $t("login.login") }}</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span />
    </div>
  </div>
</template>

<script>
import { encryptDes, decryptDes } from '@/utils/des.js'
import i18n from '@/utils/lang/index'
import { getCodeImg, aes } from '@/api/login'
import Cookies from 'js-cookie'
import { encrypt, decrypt } from '@/utils/jsencrypt'

export default {
  name: 'Login',
  data() {
    return {
      iscode: false,
      codeUrl: '',
      cookiePassword: '',
      language: 'zh',
      langeOptions: [
        {
          value: 'zh',
          label: '中文'
        },
        {
          value: 'en',
          label: 'English'
        },
        {
          value: 'tw',
          label: '繁體'
        }
      ],
      loginForm: {
        userame: 'admin',
        password: 'admin123',
        rememberMe: false,
        code: '',
        uuid: ''
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', message: '用户名不能为空' }
        ],
        password: [
          { required: true, trigger: 'blur', message: '密码不能为空' }
        ],
        code: [{ required: true, trigger: 'change', message: '验证码不能为空' }]
      },
      loading: false,
      redirect: undefined
    }
  },
  computed: {
    listData() {
      return this.$store.state.user.logindata
    }
  },

  watch: {
    listData(val) {
      console.log(val)
      if (val.img) {
        this.iscode = true
      }
      this.codeUrl = 'data:image/gif;base64,' + val.img
      this.loginForm.uuid = val.uuid
    },
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  created() {
    this.langechanges()
    this.getCookie()
    this.aeslist()
  },
  mounted() {

  },
  methods: {

    aeslist() {
      aes().then((res) => {
        console.log(res)
        const arr = res
        Cookies.set('s1', arr.s1)
        Cookies.set('s2', arr.s2)
        Cookies.set('s3', arr.s3)
        Cookies.set('s4', arr.s4)
      })
    },

    langechanges() {
      if (Cookies.get('langs')) {
        console.log(Cookies.get('langs'))
        this.language = Cookies.get('langs')
      } else {
        this.$i18n.locale = 'zh'
        Cookies.set('langs', 'zh')
      }
      document.title = i18n.t('login.title')
    },
    langechange(val) {
      this.$i18n.locale = val
      Cookies.set('langs', val)
      document.title = i18n.t('login.title')
    },
    getCode() {
      getCodeImg().then(res => {
        this.codeUrl = 'data:image/gif;base64,' + res.img
        this.loginForm.uuid = res.uuid
      })
    },
    getCookie() {
      const username = Cookies.get('username')
      const password = Cookies.get('password')
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password:
          password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          const key =
            'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
          // const a = encryptDes(this.loginForm.username, key)
          // console.log(123446, decryptDes(a, key))

          if (this.loginForm.rememberMe) {
            Cookies.set('username', encryptDes(this.loginForm.username, key))
            Cookies.set('password', encryptDes(this.loginForm.password), key)
            Cookies.set('rememberMe', this.loginForm.rememberMe, {
              expires: 30
            })
          } else {
            Cookies.remove('username')
            Cookies.remove('password')
            Cookies.remove('rememberMe')
          }
          this.$store
            .dispatch('Login', this.loginForm)
            .then(() => {
              this.$router.push({ path: this.redirect || '/' }).catch(() => {})
            })
            .catch(() => {
              this.loading = false
              this.getCode()
            })
        }
      })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 38px;
}
</style>
